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Finding the Fourth Proportional to 11,998.15, 16,557.07 and 6,693.87

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Solution

The fourth proportional to 11,998.15, 16,557.07 and 6,693.87 is: 9,237.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.15 : 16,557.07 = 6,693.87 : x
  2. Step 2: Convert to fraction form
    11,998.15/16,557.07 = 6,693.87/x
  3. Step 3: Cross multiply
    11,998.15x = 16,557.07 × 6,693.87
  4. Step 4: Simplify right side
    11,998.15x = 110,830,874.16
  5. Step 5: Solve for x
    x = 110,830,874.16/11,998.15
  6. Step 6: Final answer
    x = 9,237.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.